fix all the asan stuff I can find

Author: Hugobros3

src/driver/driver.c

@@ -104,6 +104,7 @@ ShadyErrorCodes driver_load_source_files(DriverConfig* args, Module* mod) {
         if (err)
             return err;
         link_module(mod, m);
+        destroy_ir_arena(get_module_arena(m));
     }
 
     return NoError;

src/driver/vcc.c

@@ -152,6 +152,7 @@ int main(int argc, char** argv) {
             remove(vcc_options.tmp_filename);
 
         driver_compile(&args, mod);
+        destroy_ir_arena(get_module_arena(mod));
     }
 
     info_print("Done\n");

src/shady/analysis/free_variables.c

@@ -157,4 +157,5 @@ void destroy_scope_variables_map(struct Dict* map) {
         destroy_dict(value->free_set);
         free((void*) value);
     }
+    destroy_dict(map);
 }

src/shady/compile.c

@@ -84,6 +84,7 @@ void add_scheduler_source(const CompilerConfig* config, Module* dst) {
     Module* builtin_scheduler_mod = parse_slim_module(config, pconfig, shady_scheduler_src, "builtin_scheduler");
     debug_print("Adding builtin scheduler code");
     link_module(dst, builtin_scheduler_mod);
+    destroy_ir_arena(get_module_arena(builtin_scheduler_mod));
 }
 
 CompilationResult run_compiler_passes(CompilerConfig* config, Module** pmod) {

src/shady/passes/reconvergence_heuristics.c

@@ -378,9 +378,10 @@ static const Node* process_node(Context* ctx, const Node* node) {
     Rewriter* rewriter = &ctx->rewriter;
     IrArena* arena = rewriter->dst_arena;
 
+    Context new_context = *ctx;
+
     switch (node->tag) {
         case Function_TAG: {
-            Context new_context = *ctx;
             ctx = &new_context;
             ctx->current_fn = node;
             ctx->fwd_scope = new_scope(ctx->current_fn);
@@ -397,7 +398,6 @@ static const Node* process_node(Context* ctx, const Node* node) {
             return new;
         }
         case Constant_TAG: {
-            Context new_context = *ctx;
             ctx = &new_context;
             ctx->current_fn = NULL;
             rewriter = &ctx->rewriter;

src/shady/print.c

@@ -1033,8 +1033,11 @@ void log_module(LogLevel level, const CompilerConfig* compiler_cfg, Module* mod)
         config.print_builtin = compiler_cfg->logging.print_builtin;
         config.print_internal = compiler_cfg->logging.print_internal;
     }
-    if (level >= get_log_level())
-        print_module(open_file_as_printer(stderr), mod, config);
+    if (level >= get_log_level()) {
+        Printer* p = open_file_as_printer(stderr);
+        print_module(p, mod, config);
+        destroy_printer(p);
+    }
 }
 
 void print_node_operand(Printer* p, const Node* n, String name, NodeClass op_class, const Node* op, PrintConfig config) {