[llvm] Reduce ComplexDeinterleavingPass.h includes

Remove the unnecessary `"llvm/IR/PatternMatch.h"` include directive from
`ComplexDeinterleavingPass.h` and move it to the corresponding source
file.

Add missing includes that were transitively included by this header to 2
other source files.

This reduces the total number of preprocessing tokens across the LLVM
source files in `lib` from (roughly) 1,964,876,961 to 1,935,091,611 - a
reduction of ~1.52%. This should result in a small improvement in
compilation time.

Differential Revision: https://reviews.llvm.org/D150514

llvm/include/llvm/CodeGen/ComplexDeinterleavingPass.h

@@ -15,7 +15,6 @@
 #define LLVM_CODEGEN_COMPLEXDEINTERLEAVING_H
 
 #include "llvm/IR/PassManager.h"
-#include "llvm/IR/PatternMatch.h"
 
 namespace llvm {
 

llvm/lib/CodeGen/ComplexDeinterleavingPass.cpp

@@ -67,6 +67,7 @@
 #include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/PatternMatch.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Transforms/Utils/Local.h"

llvm/lib/CodeGen/SelectOptimize.cpp

@@ -28,6 +28,7 @@
 #include "llvm/IR/Function.h"
 #include "llvm/IR/IRBuilder.h"
 #include "llvm/IR/Instruction.h"
+#include "llvm/IR/PatternMatch.h"
 #include "llvm/IR/ProfDataUtils.h"
 #include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"

llvm/lib/Target/WebAssembly/WebAssemblyDebugValueManager.cpp

@@ -16,6 +16,7 @@
 #include "WebAssembly.h"
 #include "WebAssemblyMachineFunctionInfo.h"
 #include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/IR/DebugInfoMetadata.h"
 
 using namespace llvm;