Rename Environment::LookupExpr() to
Environment::lookupExpr() and move its implementation
out-of-line.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120969 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Checker/Environment.cpp b/lib/Checker/Environment.cpp
index 4b67bda..086d982 100644
--- a/lib/Checker/Environment.cpp
+++ b/lib/Checker/Environment.cpp
@@ -17,6 +17,15 @@
 
 using namespace clang;
 
+SVal Environment::lookupExpr(const Stmt* E) const {
+  const SVal* X = ExprBindings.lookup(E);
+  if (X) {
+    SVal V = *X;
+    return V;
+  }
+  return UnknownVal();
+}
+
 SVal Environment::getSVal(const Stmt *E, SValBuilder& svalBuilder) const {
   for (;;) {
     switch (E->getStmtClass()) {
@@ -75,7 +84,7 @@
     };
     break;
   }
-  return LookupExpr(E);
+  return lookupExpr(E);
 }
 
 Environment EnvironmentManager::bindExpr(Environment Env, const Stmt *S,