Revert "[NFC][TableGen][GlobalISel] Move MIR Pattern Parsing out of Combiner Impl (#80257)"

This reverts commit cfa0833.

Author: Pierre-vh

llvm/utils/TableGen/GlobalISel/CMakeLists.txt

@@ -5,10 +5,8 @@ set(LLVM_LINK_COMPONENTS
 
 add_llvm_library(LLVMTableGenGlobalISel STATIC OBJECT EXCLUDE_FROM_ALL
   CodeExpander.cpp
-  CombinerUtils.cpp
   CXXPredicates.cpp
   MatchDataInfo.cpp
-  PatternParser.cpp
   Patterns.cpp
   $<TARGET_OBJECTS:obj.LLVMTableGenCommon>
 
@@ -18,6 +16,6 @@ add_llvm_library(LLVMTableGenGlobalISel STATIC OBJECT EXCLUDE_FROM_ALL
 
 # Users may include its headers as "GlobalISel/*.h"
 target_include_directories(LLVMTableGenGlobalISel
-  PUBLIC
+  INTERFACE
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/..>
   )

llvm/utils/TableGen/GlobalISel/CombinerUtils.cpp

@@ -65,10 +65,6 @@ inline const DagInit *getDagWithOperatorOfSubClass(const Init &N,
         return I;
   return nullptr;
 }
-
-/// Copies a StringRef into a static pool to preserve it.
-StringRef insertStrRef(StringRef S);
-
 } // namespace llvm
 
 #endif