support a few DWARF-5 only features (#1410)

Support a few DWARF-5 only features:

* read .debug_addr
* read .debug_rnglists
* read .debug_loclists when present
* add dwarf-5 test
* read .debug_addr
* read .debug_rnglists
* read .debug_loclists when present
* support .debug_line_str and .debug_str_offsets

Co-authored-by: Yury Delendik <ydelendik@mozilla.com>

tests/all/debug/testsuite/fib-wasm.c

@@ -1,10 +1,13 @@
 // Compile with:
-//   clang --target=wasm32 fib-wasm.c -o fib-wasm.wasm -g \
+//   clang --target=wasm32 fib-wasm.c -o fib-wasm.wasm -gdwarf-4 \
+//     -Wl,--no-entry,--export=fib -nostdlib -fdebug-prefix-map=$PWD=.
+//
+//   clang --target=wasm32 fib-wasm.c -o fib-wasm-dwarf5.wasm -gdwarf-5 \
 //     -Wl,--no-entry,--export=fib -nostdlib -fdebug-prefix-map=$PWD=.
 
 int fib(int n) {
-  int i, t, a = 0, b = 1;
-  for (i = 0; i < n; i++) {
+  int t, a = 0, b = 1;
+  for (int i = 0; i < n; i++) {
     t = a;
     a = b;
     b += t;

tests/all/debug/translate.rs

@@ -41,17 +41,51 @@ check:      DW_AT_name	("fib")
 # Accepts one parameter
 check:      DW_TAG_formal_parameter
 check:        DW_AT_name	("n")
-check:        DW_AT_decl_line	(5)
-# Has four locals: i, t, a, b
-check:      DW_TAG_variable
-check:        DW_AT_name	("i")
-check:        DW_AT_decl_line	(6)
+check:        DW_AT_decl_line	(8)
+# Has four locals: t, a, b, i
 check:      DW_TAG_variable
 check:        DW_AT_name	("t")
+check:        DW_AT_decl_line	(9)
 check:      DW_TAG_variable
 check:        DW_AT_name	("a")
 check:      DW_TAG_variable
 check:        DW_AT_name	("b")
+check:      DW_TAG_variable
+check:        DW_AT_name	("i")
+check:        DW_AT_decl_line	(10)
+    "##,
+    )
+}
+
+#[test]
+#[ignore]
+#[cfg(all(
+    any(target_os = "linux", target_os = "macos"),
+    target_pointer_width = "64"
+))]
+fn test_debug_dwarf5_translate() -> Result<()> {
+    check_wasm(
+        "tests/debug/testsuite/fib-wasm-dwarf5.wasm",
+        r##"
+check: DW_TAG_compile_unit
+# We have "fib" function
+check: DW_TAG_subprogram
+check:      DW_AT_name	("fib")
+# Accepts one parameter
+check:      DW_TAG_formal_parameter
+check:        DW_AT_name	("n")
+check:        DW_AT_decl_line	(8)
+# Has four locals: t, a, b, i
+check:      DW_TAG_variable
+check:        DW_AT_name	("t")
+check:        DW_AT_decl_line	(9)
+check:      DW_TAG_variable
+check:        DW_AT_name	("a")
+check:      DW_TAG_variable
+check:        DW_AT_name	("b")
+check:      DW_TAG_variable
+check:        DW_AT_name	("i")
+check:        DW_AT_decl_line	(10)
     "##,
     )
 }