Rename llvm.frameescape and llvm.framerecover to localescape and localrecover

Summary:
Initially, these intrinsics seemed like part of a family of "frame"
related intrinsics, but now I think that's more confusing than helpful.
Initially, the LangRef specified that this would create a new kind of
allocation that would be allocated at a fixed offset from the frame
pointer (EBP/RBP). We ended up dropping that design, and leaving the
stack frame layout alone.

These intrinsics are really about sharing local stack allocations, not
frame pointers. I intend to go further and add an `llvm.localaddress()`
intrinsic that returns whatever register (EBP, ESI, ESP, RBX) is being
used to address locals, which should not be confused with the frame
pointer.

Naming suggestions at this point are welcome, I'm happy to re-run sed.

Reviewers: majnemer, nicholas

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11011

llvm-svn: 241633
diff --git a/llvm/test/CodeGen/WinEH/cppeh-nested-rethrow.ll b/llvm/test/CodeGen/WinEH/cppeh-nested-rethrow.ll
index 14a5f23..53f532c 100644
--- a/llvm/test/CodeGen/WinEH/cppeh-nested-rethrow.ll
+++ b/llvm/test/CodeGen/WinEH/cppeh-nested-rethrow.ll
@@ -53,7 +53,7 @@
 
 ; CHECK-LABEL: define void @"\01?test1@@YAXXZ"()
 ; CHECK: entry:
-; CHECK:   call void (...) @llvm.frameescape
+; CHECK:   call void (...) @llvm.localescape
 
 ; Function Attrs: nounwind uwtable
 define void @"\01?test1@@YAXXZ"() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
@@ -121,7 +121,7 @@
 
 ; CHECK-LABEL: define void @"\01?test2@@YAXXZ"()
 ; CHECK: entry:
-; CHECK:   call void (...) @llvm.frameescape
+; CHECK:   call void (...) @llvm.localescape
 
 ; Function Attrs: nounwind uwtable
 define void @"\01?test2@@YAXXZ"() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {