Default to KHR extension

Fix #2530.
diff --git a/Test/baseResults/spv.bufferhandle1.frag.out b/Test/baseResults/spv.bufferhandle1.frag.out
index 59bcc78..b49c129 100644
--- a/Test/baseResults/spv.bufferhandle1.frag.out
+++ b/Test/baseResults/spv.bufferhandle1.frag.out
@@ -6,7 +6,7 @@
                               Capability Shader
                               Capability VulkanMemoryModelKHR
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                               Extension  "SPV_KHR_vulkan_memory_model"
                1:             ExtInstImport  "GLSL.std.450"
diff --git a/Test/baseResults/spv.bufferhandle10.frag.out b/Test/baseResults/spv.bufferhandle10.frag.out
index 3a33c42..f9ab60d 100644
--- a/Test/baseResults/spv.bufferhandle10.frag.out
+++ b/Test/baseResults/spv.bufferhandle10.frag.out
@@ -6,7 +6,7 @@
                               Capability Shader
                               Capability VulkanMemoryModelKHR
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                               Extension  "SPV_KHR_vulkan_memory_model"
                1:             ExtInstImport  "GLSL.std.450"
diff --git a/Test/baseResults/spv.bufferhandle11.frag.out b/Test/baseResults/spv.bufferhandle11.frag.out
index bd034aa..9dd1c7b 100644
--- a/Test/baseResults/spv.bufferhandle11.frag.out
+++ b/Test/baseResults/spv.bufferhandle11.frag.out
@@ -9,8 +9,8 @@
                               Capability Shader
                               Capability StorageBuffer8BitAccess
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
                               Extension  "SPV_KHR_8bit_storage"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle12.frag.out b/Test/baseResults/spv.bufferhandle12.frag.out
index c47c718..7cd5cb5 100644
--- a/Test/baseResults/spv.bufferhandle12.frag.out
+++ b/Test/baseResults/spv.bufferhandle12.frag.out
@@ -9,8 +9,8 @@
                               Capability Shader
                               Capability StorageUniformBufferBlock16
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
                               Extension  "SPV_KHR_16bit_storage"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle13.frag.out b/Test/baseResults/spv.bufferhandle13.frag.out
index bfc1524..5ce24ac 100644
--- a/Test/baseResults/spv.bufferhandle13.frag.out
+++ b/Test/baseResults/spv.bufferhandle13.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle14.frag.out b/Test/baseResults/spv.bufferhandle14.frag.out
index 514a798..34df753 100644
--- a/Test/baseResults/spv.bufferhandle14.frag.out
+++ b/Test/baseResults/spv.bufferhandle14.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
                               EntryPoint Fragment 4  "main"
diff --git a/Test/baseResults/spv.bufferhandle15.frag.out b/Test/baseResults/spv.bufferhandle15.frag.out
index bfa5d94..ab1b4db 100644
--- a/Test/baseResults/spv.bufferhandle15.frag.out
+++ b/Test/baseResults/spv.bufferhandle15.frag.out
@@ -8,7 +8,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle16.frag.out b/Test/baseResults/spv.bufferhandle16.frag.out
index 284bcb0..a9d9dcf 100644
--- a/Test/baseResults/spv.bufferhandle16.frag.out
+++ b/Test/baseResults/spv.bufferhandle16.frag.out
@@ -6,7 +6,7 @@
                               Capability Shader
                               Capability Int64
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
                               EntryPoint Fragment 4  "main"
diff --git a/Test/baseResults/spv.bufferhandle18.frag.out b/Test/baseResults/spv.bufferhandle18.frag.out
index 21dddc5..59ad6d0 100644
--- a/Test/baseResults/spv.bufferhandle18.frag.out
+++ b/Test/baseResults/spv.bufferhandle18.frag.out
@@ -6,7 +6,7 @@
                               Capability Shader
                               Capability Int64
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
                               EntryPoint Fragment 4  "main"
diff --git a/Test/baseResults/spv.bufferhandle2.frag.out b/Test/baseResults/spv.bufferhandle2.frag.out
index f66c92a..e20f3b7 100644
--- a/Test/baseResults/spv.bufferhandle2.frag.out
+++ b/Test/baseResults/spv.bufferhandle2.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle3.frag.out b/Test/baseResults/spv.bufferhandle3.frag.out
index 95d4dcf..65ad1ca 100644
--- a/Test/baseResults/spv.bufferhandle3.frag.out
+++ b/Test/baseResults/spv.bufferhandle3.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle4.frag.out b/Test/baseResults/spv.bufferhandle4.frag.out
index 6751d6f..e06bca4 100644
--- a/Test/baseResults/spv.bufferhandle4.frag.out
+++ b/Test/baseResults/spv.bufferhandle4.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle5.frag.out b/Test/baseResults/spv.bufferhandle5.frag.out
index 9f78166..bf4d3a2 100644
--- a/Test/baseResults/spv.bufferhandle5.frag.out
+++ b/Test/baseResults/spv.bufferhandle5.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
                               EntryPoint Fragment 4  "main"
diff --git a/Test/baseResults/spv.bufferhandle6.frag.out b/Test/baseResults/spv.bufferhandle6.frag.out
index 441c762..abc9187 100644
--- a/Test/baseResults/spv.bufferhandle6.frag.out
+++ b/Test/baseResults/spv.bufferhandle6.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle7.frag.out b/Test/baseResults/spv.bufferhandle7.frag.out
index 3c8e86c..4282a36 100644
--- a/Test/baseResults/spv.bufferhandle7.frag.out
+++ b/Test/baseResults/spv.bufferhandle7.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle8.frag.out b/Test/baseResults/spv.bufferhandle8.frag.out
index b9f23c5..65d4665 100644
--- a/Test/baseResults/spv.bufferhandle8.frag.out
+++ b/Test/baseResults/spv.bufferhandle8.frag.out
@@ -5,7 +5,7 @@
 
                               Capability Shader
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.bufferhandle9.frag.out b/Test/baseResults/spv.bufferhandle9.frag.out
index 7e534df..1e5091c 100644
--- a/Test/baseResults/spv.bufferhandle9.frag.out
+++ b/Test/baseResults/spv.bufferhandle9.frag.out
@@ -6,7 +6,7 @@
                               Capability Shader
                               Capability Int64
                               Capability PhysicalStorageBufferAddressesEXT
-                              Extension  "SPV_EXT_physical_storage_buffer"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                1:             ExtInstImport  "GLSL.std.450"
                               MemoryModel PhysicalStorageBuffer64EXT GLSL450
diff --git a/Test/baseResults/spv.coopmat.comp.out b/Test/baseResults/spv.coopmat.comp.out
index 6838bfc..0a609df 100644
--- a/Test/baseResults/spv.coopmat.comp.out
+++ b/Test/baseResults/spv.coopmat.comp.out
@@ -9,8 +9,8 @@
                               Capability VulkanMemoryModelKHR
                               Capability PhysicalStorageBufferAddressesEXT
                               Capability CooperativeMatrixNV
-                              Extension  "SPV_EXT_physical_storage_buffer"
                               Extension  "SPV_KHR_16bit_storage"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                               Extension  "SPV_KHR_vulkan_memory_model"
                               Extension  "SPV_NV_cooperative_matrix"
diff --git a/Test/baseResults/spv.intcoopmat.comp.out b/Test/baseResults/spv.intcoopmat.comp.out
index e74f44e..6a69743 100644
--- a/Test/baseResults/spv.intcoopmat.comp.out
+++ b/Test/baseResults/spv.intcoopmat.comp.out
@@ -10,8 +10,8 @@
                               Capability VulkanMemoryModelKHR
                               Capability PhysicalStorageBufferAddressesEXT
                               Capability CooperativeMatrixNV
-                              Extension  "SPV_EXT_physical_storage_buffer"
                               Extension  "SPV_KHR_8bit_storage"
+                              Extension  "SPV_KHR_physical_storage_buffer"
                               Extension  "SPV_KHR_storage_buffer_storage_class"
                               Extension  "SPV_KHR_vulkan_memory_model"
                               Extension  "SPV_NV_cooperative_matrix"