Update emsymbolizer and emsize tests (emscripten-core#21305)

LLVM rev 8b0f47bfa updated section addresses to use binary offsets in linked
wasm files, which is reflected in the llvm-size (and thus emsize) tool. It
also made llvm-objdump display file offsets rather than section offsets when
disassembling binaries. Update the emsize and emsymbolizer tests accordingly
(expect section addresses in emsize, and use file rather than section offsets
in the emsymbolizer test, since the offsets are read from objdump output).

test/other/test_emsize.out

@@ -1,11 +1,11 @@
 section      size   addr
-TYPE           51      0
-IMPORT         31      0
-FUNCTION       14      0
-GLOBAL          9      0
-EXPORT          9      0
-ELEM            9      0
-CODE         1556      0
-DATA           77      0
+TYPE           51     10
+IMPORT         31     63
+FUNCTION       14     96
+GLOBAL          9    112
+EXPORT          9    123
+ELEM            9    134
+CODE         1556    146
+DATA           77   1704
 JS		6756	0
 Total		8512

test/test_other.py

@@ -823,7 +823,6 @@ def test_em_config_missing_arg(self):
     out = self.expect_fail([EMCC, '--em-config'])
     self.assertContained('error: --em-config must be followed by a filename', out)
 
-  @disabled('Updating underlying tool output')
   def test_emsize(self):
     # test binaryen generated by running:
     #   emcc test/hello_world.c -Oz --closure 1 -o test/other/test_emsize.js
@@ -9701,11 +9700,10 @@ def test(dump_file):
     test('foo.wasm.dump')
     test('bar.wasm.dump')
 
-  @disabled('Updating underlying tool output')
   def test_emsymbolizer(self):
     def check_dwarf_loc_info(address, funcs, locs):
       out = self.run_process(
-          [emsymbolizer, '-tcode', '-s', 'dwarf', 'test_dwarf.wasm', address],
+          [emsymbolizer, '-s', 'dwarf', 'test_dwarf.wasm', address],
           stdout=PIPE).stdout
       for func in funcs:
         self.assertIn(func, out)
@@ -9714,7 +9712,7 @@ def check_dwarf_loc_info(address, funcs, locs):
 
     def check_source_map_loc_info(address, loc):
       out = self.run_process(
-          [emsymbolizer, '-tcode', '-s', 'sourcemap', 'test_dwarf.wasm',
+          [emsymbolizer, '-s', 'sourcemap', 'test_dwarf.wasm',
            address],
           stdout=PIPE).stdout
       self.assertIn(loc, out)
@@ -9727,7 +9725,7 @@ def check_source_map_loc_info(address, loc):
     #        ...
     #        6: 41 00         i32.const       0
     #        ...
-    # The addresses here are the offsets to start of the code section. Returns
+    # The addresses here are the offsets to the start of the file. Returns
     # the address string in hexadecimal.
     def get_addr(text):
       out = self.run_process([common.LLVM_OBJDUMP, '-d', 'test_dwarf.wasm'],