Add tests for previous fixes

Add tests for the fixes made in commits
76cb1144ef,
a465b7f58f,
0f522fb32a,
82969f045c and
673befd2d7.

tests/tests2/58_function_redefinition.c

@@ -0,0 +1,9 @@
+int f(void)
+{
+    return 0;
+}
+
+int f(void)
+{
+    return 1;
+}

tests/tests2/58_function_redefinition.expect

@@ -0,0 +1 @@
+58_function_redefinition.c:7: error: redefinition of 'f'

tests/tests2/59_function_array.c

@@ -0,0 +1 @@
+int (*fct)[42](int x);

tests/tests2/59_function_array.expect

@@ -0,0 +1 @@
+59_function_array.c:1: error: declaration of an array of functions

tests/tests2/60_enum_redefinition.c

@@ -0,0 +1,4 @@
+enum color {RED, GREEN, BLUE};
+enum color {R, G, B};
+
+enum color c;

tests/tests2/60_enum_redefinition.expect

@@ -0,0 +1 @@
+60_enum_redefinition.c:2: error: struct/union/enum already defined

tests/tests2/61_undefined_enum.c

@@ -0,0 +1 @@
+enum rgb c = 42;

tests/tests2/61_undefined_enum.expect

@@ -0,0 +1 @@
+61_undefined_enum.c:1: error: unknown struct/union/enum

tests/tests2/62_enumerator_redefinition.c

@@ -0,0 +1,4 @@
+enum color {RED, GREEN, BLUE};
+enum rgb {RED, G, B};
+
+enum color c = RED;

tests/tests2/62_enumerator_redefinition.expect

@@ -0,0 +1 @@
+62_enumerator_redefinition.c:2: error: redefinition of enumerator 'RED'

tests/tests2/Makefile

@@ -69,7 +69,12 @@ TESTS =	\
  54_goto.test \
  55_lshift_type.test \
  56_btype_excess-1.test \
- 57_btype_excess-2.test
+ 57_btype_excess-2.test \
+ 58_function_redefinition.test \
+ 59_function_array.test \
+ 60_enum_redefinition.test \
+ 61_undefined_enum.test \
+ 62_enumerator_redefinition.test
 
 # 30_hanoi.test -- seg fault in the code, gcc as well
 # 34_array_assignment.test -- array assignment is not in C standard