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;
+}

test/val/bug1643.c

@@ -0,0 +1,12 @@
+/* bug #1643, macro expansion in #include */
+
+#define MKSTR(a)        MKSTR_IMPL(a)
+#define MKSTR_IMPL(a)   #a
+#define BUG1643_H       bug1643.h
+
+#include MKSTR(BUG1643_H)
+
+int main(void)
+{
+    return BUG1643_RESULT;
+}

test/val/bug1643.h

@@ -0,0 +1,13 @@
+/* bug #1643, macro expansion in #include */
+
+#define STDIO_H     <stdio.h>
+#include STDIO_H
+
+#ifdef string
+#undef string
+#endif
+
+#define string      0!%^&*/_=
+#include <string.h>
+
+#define BUG1643_RESULT 0

test/val/bug760.c

@@ -0,0 +1,12 @@
+/* bug#760 - Error when using macros as pragma arguments */
+
+#include <stdlib.h>
+
+#define BANK "PRG0"
+
+#pragma rodata-name(push, BANK)
+
+int main(void)
+{
+    return EXIT_SUCCESS;
+}