[LLDB] Add PDB/calling-conventions.test for Arm/Windows

This patch renames PDB/calling-conventions.test to calling-conventions-x86.test.
Also restrict it to run only for target-x86*.
This patch also adds a arm specific test PDB/calling-conventions-arm.test which
tests that x86 specifc calling convention decorators are ignored by Arm compiler.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D128678

lldb/test/Shell/SymbolFile/PDB/calling-conventions-arm.test

@@ -0,0 +1,11 @@
+REQUIRES: system-windows, lld, (target-arm || target-aarch64) 
+RUN: %build --compiler=clang-cl --arch=32 --nodefaultlib --output=%t.exe %S/Inputs/CallingConventionsTest.cpp
+RUN: %build --compiler=clang-cl --arch=64 --nodefaultlib --output=%t.exe %S/Inputs/CallingConventionsTest.cpp
+RUN: lldb-test symbols -dump-ast %t.exe | FileCheck %s
+
+CHECK: Module: {{.*}}
+CHECK-DAG: int (*FuncCCallPtr)();
+CHECK-DAG: int (*FuncStdCallPtr)();
+CHECK-DAG: int (*FuncFastCallPtr)();
+CHECK-DAG: int (*FuncVectorCallPtr)();
+CHECK-DAG: int (S::*FuncThisCallPtr)();

lldb/test/Shell/SymbolFile/PDB/calling-conventions-x86.test

@@ -0,0 +1,19 @@
+REQUIRES: system-windows, lld, (target-x86 || target-x86_64) 
+RUN: %build --compiler=clang-cl --arch=32 --nodefaultlib --output=%t.exe %S/Inputs/CallingConventionsTest.cpp \
+RUN:  && lldb-test symbols -dump-ast %t.exe | FileCheck --check-prefix 32BIT-CHECK %s
+RUN: %build --compiler=clang-cl --arch=64 --nodefaultlib --output=%t.exe %S/Inputs/CallingConventionsTest.cpp \
+RUN:  && lldb-test symbols -dump-ast %t.exe | FileCheck --check-prefix 64BIT-CHECK %s
+
+64BIT-CHECK: Module: {{.*}}
+64BIT-CHECK-DAG: int (*FuncCCallPtr)();
+64BIT-CHECK-DAG: int (*FuncStdCallPtr)();
+64BIT-CHECK-DAG: int (*FuncFastCallPtr)();
+64BIT-CHECK-DAG: int (*FuncVectorCallPtr)() __attribute__((vectorcall));
+64BIT-CHECK-DAG: int (S::*FuncThisCallPtr)();
+
+32BIT-CHECK: Module: {{.*}}
+32BIT-CHECK-DAG: int (*FuncCCallPtr)();
+32BIT-CHECK-DAG: int (*FuncStdCallPtr)() __attribute__((stdcall));
+32BIT-CHECK-DAG: int (*FuncFastCallPtr)() __attribute__((fastcall));
+32BIT-CHECK-DAG: int (*FuncVectorCallPtr)() __attribute__((vectorcall));
+32BIT-CHECK-DAG: int (S::*FuncThisCallPtr)() __attribute__((thiscall));