Enable multi-threaded Quick compilation

Reuse thread-local copies of llvm context data for Quick compiler
(while continuing to regenerate fresh ones per method for Portable).
This is a transitional CL - the upcoming compiler driver change
is expected to pass pass a thread context structure to each compiler
worker thread rather than use the pthread_key mechanism.

Change-Id: I277920a5c2705748c3a9f37ceace53c903747ec2
diff --git a/src/compiler_llvm/compiler_llvm.cc b/src/compiler_llvm/compiler_llvm.cc
index 85ae794..a964b40 100644
--- a/src/compiler_llvm/compiler_llvm.cc
+++ b/src/compiler_llvm/compiler_llvm.cc
@@ -45,7 +45,7 @@
                            uint32_t access_flags, InvokeType invoke_type,
                            uint32_t method_idx, jobject class_loader,
                            const DexFile& dex_file,
-                           QuickCompiler* quick_compiler);
+                           LLVMInfo* llvm_info);
 }
 #endif