Account for calling convention specifiers in function definitions in IR test cases

Several tests wouldn't pass when executed on an armv7a_pc_linux triple
due to the non-default arm_aapcs calling convention produced on the
function definitions in the IR output. Account for this with the
application of a little regex.

Patch by Ying Yi.

llvm-svn: 240971
diff --git a/clang/test/OpenMP/flush_codegen.cpp b/clang/test/OpenMP/flush_codegen.cpp
index 2c41b3a..4ebdf52 100644
--- a/clang/test/OpenMP/flush_codegen.cpp
+++ b/clang/test/OpenMP/flush_codegen.cpp
@@ -19,16 +19,16 @@
   static int a;
 #pragma omp flush
 #pragma omp flush(a)
-  // CHECK: call void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
-  // CHECK: call void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
+  // CHECK: call {{.*}}void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
+  // CHECK: call {{.*}}void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
   return tmain(a);
   // CHECK: call {{.*}} [[TMAIN:@.+]](
   // CHECK: ret
 }
 
 // CHECK: [[TMAIN]]
-// CHECK: call void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
-// CHECK: call void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
+// CHECK: call {{.*}}void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
+// CHECK: call {{.*}}void @__kmpc_flush(%{{.+}}* {{(@|%).+}})
 // CHECK: ret
 
 #endif