Added the necessary control files and reference output for the tests.

test/asm/listing/ref/120-errormsg.err2-ref

@@ -0,0 +1 @@
+120-errormsg.s:1: Error: Expected a mnemonic but found '0'

test/asm/listing/ref/121-errormsg.err2-ref

@@ -0,0 +1 @@
+121-errormsg.s:1: Error: Expected ':' after identifier to form a label but found 'end-of-line'

test/asm/listing/ref/122-errormsg.err2-ref

@@ -0,0 +1 @@
+122-errormsg.s:1: Error: Expected a struct/union name but found 'X'

test/asm/listing/ref/123-errormsg.err2-ref

@@ -0,0 +1 @@
+123-errormsg.s:1: Error: Expected 'end-of-line' but found 'foo'

test/asm/listing/ref/124-errormsg.err2-ref

@@ -0,0 +1 @@
+124-errormsg.s:1: Error: Expected 'Y' but found 'A'

test/asm/listing/ref/125-errormsg.err2-ref

@@ -0,0 +1,2 @@
+125-errormsg.s:1: Error: Expected 'X' or 'S' but found 'A'
+125-errormsg.s:1: Error: Illegal addressing mode

test/asm/listing/ref/126-errormsg.err2-ref

@@ -0,0 +1 @@
+126-errormsg.s:2: Error: Expected a storage allocator after the field name but found 'end-of-line'

test/asm/listing/ref/127-errormsg.err2-ref

@@ -0,0 +1 @@
+127-errormsg.s:1: Error: Expected a mnemonic but found '127'

test/asm/listing/ref/128-errormsg.err2-ref

@@ -0,0 +1 @@
+128-errormsg.s:1: Error: Expected ',' but found 'end-of-line'

test/asm/listing/ref/129-errormsg.err2-ref

@@ -0,0 +1 @@
+129-errormsg.s:1: Error: Expected ',' but found 'end-of-line'

test/asm/listing/ref/130-errormsg.err2-ref

@@ -0,0 +1,2 @@
+130-errormsg.s:1: Error: Expected an expression but found '|'
+130-errormsg.s:1: Error: Expected an expression but found 'end-of-line'

test/asm/listing/ref/131-errormsg.err2-ref

@@ -0,0 +1 @@
+131-errormsg.s:1: Error: Expected 'end-of-line' but found '1'

test/asm/listing/ref/132-errormsg.err2-ref

@@ -0,0 +1,2 @@
+132-errormsg.s:1: Error: Expected a parameter name but found 'X'
+132-errormsg.s:1: Error: Expected ')' but found 'X'

test/asm/listing/ref/133-errormsg.err2-ref

@@ -0,0 +1,2 @@
+133-errormsg.s:3: Error: Expected '.ENDREPEAT' but found 'end-of-file'
+133-errormsg.s:1: Note: For this '.REPEAT' command

test/asm/listing/ref/134-errormsg.err2-ref

@@ -0,0 +1,2 @@
+134-errormsg.s:3: Error: Symbol 'foo' is already an import
+134-errormsg.s:1: Note: The symbol was previously imported here

test/asm/listing/ref/135-errormsg.err2-ref

@@ -0,0 +1,2 @@
+135-errormsg.s:4: Error: Symbol 'foo' is already defined
+135-errormsg.s:1: Note: The symbol was previously defined here

test/asm/listing/ref/136-errormsg.err2-ref

@@ -0,0 +1,2 @@
+136-errormsg.s:5: Error: Missing '.ENDMACRO' for definition of macro 'mac'
+136-errormsg.s:1: Note: Macro definition started here

test/asm/listing/ref/137-errormsg.err2-ref

@@ -0,0 +1,3 @@
+137-errormsg.s:1: Error: Cannot use an instruction as macro name
+137-errormsg.s:5: Error: Expected '.ENDMACRO' but found 'end-of-file'
+137-errormsg.s:1: Note: Macro definition started here

test/asm/listing/ref/138-errormsg.err2-ref

@@ -0,0 +1,3 @@
+138-errormsg.s:2: Error: Expected an identifier but found '.ENDMACRO'
+138-errormsg.s:4: Error: Macro 'mac' contains errors and cannot be expanded
+138-errormsg.s:1: Note: Definition of macro 'mac' was here

test/asm/listing/ref/139-errormsg.err2-ref

@@ -0,0 +1,2 @@
+139-errormsg.s:4: Error: A macro named 'mac' is already defined
+139-errormsg.s:1: Note: Previous definition of macro 'mac' was here

test/asm/listing/ref/140-errormsg.err2-ref

@@ -0,0 +1,2 @@
+140-errormsg.s:5: Error: Too many parameters for macro 'foo'
+140-errormsg.s:1: Note: See definition of macro 'foo' which was here

test/asm/listing/ref/141-errormsg.err2-ref

@@ -0,0 +1,3 @@
+141-errormsg.s:7: Error: Cannot delete macro 'mac2' which is currently expanded
+141-errormsg.s:5: Note: Expanded from macro here
+141-errormsg.s:2: Note: Expanded from macro here

test/asm/listing/ref/142-errormsg.err2-ref

@@ -0,0 +1,2 @@
+142-errormsg.s:4: Error: A macro named 'mac' is already defined
+142-errormsg.s:1: Note: Previous definition of macro 'mac' was here