[analyzer] Rename ConditionTruthVal::isTrue to isConstrainedTrue.

(and the same for isFalse)

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167186 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp b/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
index 21db9e6..7dbbe2c 100644
--- a/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
+++ b/lib/StaticAnalyzer/Checkers/MacOSKeychainAPIChecker.cpp
@@ -585,7 +585,9 @@
     State = State->remove<AllocatedData>(I->first);
     // If the allocated symbol is null or if the allocation call might have
     // returned an error, do not report.
-    if (State->getConstraintManager().isNull(State, I->first).isTrue() ||
+    ConstraintManager &CMgr = State->getConstraintManager();
+    ConditionTruthVal AllocFailed = CMgr.isNull(State, I.getKey());
+    if (AllocFailed.isConstrainedTrue() ||
         definitelyReturnedError(I->second.Region, State, C.getSValBuilder()))
       continue;
     Errors.push_back(std::make_pair(I->first, &I->second));
@@ -630,7 +632,9 @@
     state = state->remove<AllocatedData>(I->first);
     // If the allocated symbol is null or if error code was returned at
     // allocation, do not report.
-    if (state->getConstraintManager().isNull(state, I.getKey()).isTrue() ||
+    ConstraintManager &CMgr = state->getConstraintManager();
+    ConditionTruthVal AllocFailed = CMgr.isNull(state, I.getKey());
+    if (AllocFailed.isConstrainedTrue() ||
         definitelyReturnedError(I->second.Region, state,
                                 C.getSValBuilder())) {
       continue;