Pipe error location through error->node.

tests/grammar.c

@@ -6,7 +6,8 @@
 #define DEBUG_PRINT_GENERATED_TESTS 1
 
 // NOTE: https://www.pcg-random.org/download.html
-typedef struct RandomSeries{
+typedef struct RandomSeries
+{
     MD_u64 state; // NOTE: RNG state.  All values are possible.
     MD_u64 inc;   //       Controls which RNG sequence (stream) is selected. Odd at all times.
 } RandomSeries;

tests/sanity_tests.c

@@ -471,7 +471,7 @@ int main(void)
                 MD_Error *e = parse.first_error;
                 for(int i_error = 0; i_error < max_error_count && tests[i_test].columns[i_error]; ++i_error)
                 {
-                    if(!e || e->location.column != tests[i_test].columns[i_error])
+                    if(!e || MD_CodeLocFromNode(e->node).column != tests[i_test].columns[i_error])
                     {
                         columns_match = 0;
                         break;