[Target] Remove Process::GetObjCLanguageRuntime

Summary:
In an effort to make Process more language agnostic, I removed
GetCPPLanguageRuntime from Process. I'm following up now with an equivalent
change for ObjC.

Differential Revision: https://reviews.llvm.org/D63052

llvm-svn: 362981
diff --git a/lldb/source/Plugins/Language/ObjC/CF.cpp b/lldb/source/Plugins/Language/ObjC/CF.cpp
index e1816a2..d9b6881 100644
--- a/lldb/source/Plugins/Language/ObjC/CF.cpp
+++ b/lldb/source/Plugins/Language/ObjC/CF.cpp
@@ -50,7 +50,7 @@
   if (!process_sp)
     return false;
 
-  ObjCLanguageRuntime *runtime = process_sp->GetObjCLanguageRuntime();
+  ObjCLanguageRuntime *runtime = ObjCLanguageRuntime::Get(*process_sp);
 
   if (!runtime)
     return false;
@@ -112,7 +112,7 @@
   if (!process_sp)
     return false;
 
-  ObjCLanguageRuntime *runtime = process_sp->GetObjCLanguageRuntime();
+  ObjCLanguageRuntime *runtime = ObjCLanguageRuntime::Get(*process_sp);
 
   if (!runtime)
     return false;
@@ -232,7 +232,7 @@
   if (!process_sp)
     return false;
 
-  ObjCLanguageRuntime *runtime = process_sp->GetObjCLanguageRuntime();
+  ObjCLanguageRuntime *runtime = ObjCLanguageRuntime::Get(*process_sp);
 
   if (!runtime)
     return false;