Move dmd files into compiler/

compiler/test/compilable/debugInference.d

@@ -0,0 +1,51 @@
+/*
+REQUIRED_ARGS: -debug
+https://issues.dlang.org/show_bug.cgi?id=20507
+*/
+
+
+void main() pure  nothrow @safe @nogc
+{
+    debug foo();
+    bar!()();
+}
+
+void foo() @system
+{
+    // Just to be sure its neither @nogc, pure or nothrow
+    __gshared int counter = 0;
+
+    if (counter++)
+        throw new Exception(new immutable(char)[counter]);
+}
+
+void bar()()
+{
+    debug {
+        foo();
+
+        auto fPtr = &S.f;
+        auto f2Ptr = &f2;
+
+        S s;
+        destroy(s);
+
+        int* ptr = cast(int*) 0;
+        int[] slice = ptr[0 .. 4];
+        int val = ptr[1];
+
+        void[] bytes = slice;
+        bytes[] = bytes[];
+
+        scope int n;
+        int* pn = &n;
+    }
+}
+
+class S {
+    void f() @safe {}
+}
+
+ref int f2(return ref int i) {
+    return i;
+}