Update tests after latest merge from main

- add -Wno-hlsl-implicit-binding
- add test case with space-only annotation

Author: hekota

clang/lib/Sema/SemaHLSL.cpp

@@ -1548,13 +1548,11 @@ void SemaHLSL::handleResourceBindingAttr(Decl *TheDecl, const ParsedAttr &AL) {
   if (AL.getNumArgs() == 2) {
     Slot = Loc->getIdentifierInfo()->getName();
     SlotLoc = Loc->getLoc();
-
     if (!AL.isArgIdent(1)) {
       Diag(AL.getLoc(), diag::err_attribute_argument_type)
           << AL << AANT_ArgumentIdentifier;
       return;
     }
-
     Loc = AL.getArgAsIdent(1);
     Space = Loc->getIdentifierInfo()->getName();
     SpaceLoc = Loc->getLoc();

clang/test/AST/HLSL/resource_binding_attr.hlsl

@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.3-library -finclude-default-header -ast-dump -o - %s | FileCheck %s
+// RUN: %clang_cc1 -Wno-hlsl-implicit-binding -triple dxil-pc-shadermodel6.3-library -finclude-default-header -ast-dump -o - %s | FileCheck %s
 
 // CHECK: HLSLBufferDecl {{.*}} line:[[# @LINE + 4]]:9 cbuffer CB
 // CHECK-NEXT: HLSLResourceClassAttr {{.*}} Implicit CBuffer

clang/test/SemaHLSL/resource_binding_implicit.hlsl

@@ -14,9 +14,8 @@ RWBuffer<int> c;
 // No warning - explicit binding.
 RWBuffer<float> d : register(u0);
 
-// TODO: Add this test once #135287 lands
-// TODO: ... @+1 {{resource has implicit register binding}}
-// TODO: RWBuffer<float> dd : register(space1);
+// expected-warning@+1 {{resource has implicit register binding}}
+RWBuffer<float> dd : register(space1);
 
 // No warning - explicit binding.
 RWBuffer<float> ddd : register(u3, space4);