Fix LSP compatibility issues with Visual Studio. (#3520)

* [LSP] compatibility logic for Visual Studio.

* [LSP] Fix diagnostic rank parsing.

* [LSP] Fix semantic highlighting of cbuffer types.

* Fix.

* Fix.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/source/slang/slang-language-server-semantic-tokens.cpp b/source/slang/slang-language-server-semantic-tokens.cpp
index 837aad06c..ae10d62e8 100644
--- a/source/slang/slang-language-server-semantic-tokens.cpp
+++ b/source/slang/slang-language-server-semantic-tokens.cpp
@@ -40,6 +40,8 @@ SemanticToken _createSemanticToken(SourceManager* manager, SourceLoc loc, Name*
 List<SemanticToken> getSemanticTokens(Linkage* linkage, Module* module, UnownedStringSlice fileName, DocumentVersion* doc)
 {
     auto manager = linkage->getSourceManager();
+    
+    auto cbufferName = linkage->getNamePool()->getName(toSlice("ConstantBuffer"));
 
     List<SemanticToken> result;
     auto maybeInsertToken = [&](const SemanticToken& token)
@@ -73,6 +75,10 @@ List<SemanticToken> getSemanticTokens(Linkage* linkage, Module* module, UnownedS
             if (target->hasModifier<BuiltinTypeModifier>())
                 return;
             token.type = SemanticTokenType::Type;
+            if (name == cbufferName)
+            {
+                token.length = doc->getTokenLength(token.line, token.col);
+            }
         }
         else if (as<ConstructorDecl>(target))
         {
@@ -156,7 +162,7 @@ List<SemanticToken> getSemanticTokens(Linkage* linkage, Module* module, UnownedS
             }
             else if (auto aggTypeDecl = as<AggTypeDeclBase>(node))
             {
-                if (aggTypeDecl->getName())
+                if (aggTypeDecl->getName() && aggTypeDecl->findModifier<ImplicitParameterGroupElementTypeModifier>() == nullptr)
                 {
                     SemanticToken token = _createSemanticToken(
                         manager, aggTypeDecl->getNameLoc(), aggTypeDecl->getName());