Preprocessor directives can now appear in the argument list of function-like macro calls.

#pragma PP-tokens can now be macro replaced.
#include header names directly enclosed in <> are free of macro replacement.
Preprocess-only mode (-E) now outputs with #line as source info.
Moved testcases for #760 and #1357.
Added testcase for #1643.

test/val/bug1357.c

@@ -0,0 +1,30 @@
+
+/* issue #1357 - X Macros don't work with C preprocessor */
+
+#define OPCODES(X) \
+    X(PUSHNIL) \
+    X(PUSHTRUE) \
+    X(PUSHFALSE)
+
+enum {
+#define X(op) op,
+OPCODES(X)
+#undef X
+    N_OPS
+};
+
+/* cc65 -E bug1357.c -o bug1357.c.pre
+   should produce something like this:
+
+enum {
+PUSHNIL,
+PUSHTRUE,
+PUSHFALSE,
+    N_OPS
+};
+*/
+
+int main(void)
+{
+    return 0;
+}