Implement AST importing and merging for enumeration types and
enumerators, along with ImplicitCastExprs to make it work.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96024 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/ASTMerge/Inputs/enum1.c b/test/ASTMerge/Inputs/enum1.c
new file mode 100644
index 0000000..cbbed47
--- /dev/null
+++ b/test/ASTMerge/Inputs/enum1.c
@@ -0,0 +1,34 @@
+// Matching
+enum E1 {
+  E1Enumerator1,
+  E1Enumerator2 = 3,
+  E1Enumerator3
+} x1;
+
+// Value mismatch
+enum E2 {
+  E2Enumerator1,
+  E2Enumerator2 = 3,
+  E2Enumerator3
+} x2;
+
+// Name mismatch
+enum E3 {
+  E3Enumerator1,
+  E3Enumerator2 = 3,
+  E3Enumerator3
+} x3;
+
+// Missing enumerator
+enum E4 {
+  E4Enumerator1,
+  E4Enumerator2,
+  E4Enumerator3
+} x4;
+
+// Extra enumerator
+enum E5 {
+  E5Enumerator1,
+  E5Enumerator2,
+  E5Enumerator3
+} x5;