Fix a loophole with static local variables.

sourcepawn/compiler/tests/fail-bad-array-decls.sp

@@ -5,6 +5,7 @@ public OnPluginStart()
   int v = 10;
   int invalid1[v];
   int[] invalid2 = {1};
+  static int[] invalid3 = {1};
 }
 
 void invalid_arg1(int invalid[])

sourcepawn/compiler/tests/fail-bad-array-decls.txt

@@ -1,6 +1,7 @@
 (1) : error 162: cannot create dynamic arrays in global scope - did you mean to create a fixed-length array with brackets after the variable name?
 (6) : error 161: brackets after variable name indicate a fixed-size array, but a dynamic size was given - did you mean to use 'new int[size]' syntax?
 (7) : error 160: brackets in between type and variable name indicate a dynamic-size array, but a fixed-size initializer was given
-(10) : error 159: brackets after variable name indicate a fixed-size array, but size could not be determined - either specify sizes, an array initializer, or use dynamic syntax (such as 'char[] x')
-(14) : error 160: brackets in between type and variable name indicate a dynamic-size array, but a fixed-size initializer was given
+(8) : error 165: cannot create dynamic arrays in static scope - did you mean to create a fixed-length array with brackets after the variable name?
+(11) : error 159: brackets after variable name indicate a fixed-size array, but size could not be determined - either specify sizes, an array initializer, or use dynamic syntax (such as 'char[] x')
+(15) : error 160: brackets in between type and variable name indicate a dynamic-size array, but a fixed-size initializer was given