Report bad code when localloc is in a funclet (#121113)

The interpreter didn't check that localloc is not valid in funclets.
Couple of coreclr tests were failing due to that.

To make this work properly, I've removed marking blocks with BBClauseTry
as it was not used for anything and preventing the check for code being
in funclet working properly.

Author: janvorli

src/coreclr/interpreter/compiler.cpp

@@ -2263,16 +2263,6 @@ void InterpCompiler::InitializeClauseBuildingBlocks(CORINFO_METHOD_INFO* methodI
             BADCODE("Invalid handler region in EH clause");
         }
 
-        // Find and mark all basic blocks that are part of the try region.
-        for (uint32_t j = clause.TryOffset; j < (clause.TryOffset + clause.TryLength); j++)
-        {
-            InterpBasicBlock* pBB = m_ppOffsetToBB[j];
-            if (pBB != NULL && pBB->clauseType == BBClauseNone)
-            {
-                pBB->clauseType = BBClauseTry;
-            }
-        }
-
         InterpBasicBlock* pHandlerBB = GetBB(clause.HandlerOffset);
 
         // Find and mark all basic blocks that are part of the handler region.
@@ -7488,6 +7478,11 @@ void InterpCompiler::GenerateCode(CORINFO_METHOD_INFO* methodInfo)
                     }
                     case CEE_LOCALLOC:
                         CHECK_STACK(1);
+                        if (m_pCBB->clauseType != BBClauseNone)
+                        {
+                            // Localloc inside a funclet is not allowed
+                            BADCODE("CEE_LOCALLOC inside funclet");
+                        }
 #if TARGET_64BIT
                         // Length is natural unsigned int
                         if (m_pStackPointer[-1].type == StackTypeI4)

src/coreclr/interpreter/compiler.h

@@ -293,7 +293,6 @@ enum InterpBBState
 enum InterpBBClauseType
 {
     BBClauseNone,
-    BBClauseTry,
     BBClauseCatch,
     BBClauseFinally,
     BBClauseFilter,