Revert of recipe engine: extract infra-specific paths out of the engine

recipe_modules/raw_io/example.expected/basic.json

Index: recipe_modules/raw_io/example.expected/basic.json
diff --git a/recipe_modules/raw_io/example.expected/basic.json b/recipe_modules/raw_io/example.expected/basic.json
index bf507c7b36bd2bcb6aa54070343ebeaab23e61c4..d843c2d30d75b4e22e8d5327b032b22b6edd555b 100644
--- a/recipe_modules/raw_io/example.expected/basic.json
+++ b/recipe_modules/raw_io/example.expected/basic.json
@@ -4,6 +4,7 @@
       "echo",
       "Hello World"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "echo",
     "stderr": "/path/to/tmp/",
     "stdout": "/path/to/tmp/"
@@ -12,6 +13,7 @@
     "cmd": [
       "cat"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "cat",
     "stdin": "hello",
     "stdout": "/path/to/tmp/out"
@@ -21,6 +23,7 @@
       "echo",
       "huh"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "automock",
     "stdout": "/path/to/tmp/out"
   },
@@ -30,6 +33,7 @@
       "-c",
       "echo blah && echo fail 1>&2"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "automock (fail)",
     "stderr": "/path/to/tmp/err",
     "stdout": "/path/to/tmp/out"
@@ -39,21 +43,24 @@
       "echo",
       "leaking"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "leak stdout",
-    "stdout": "[TMP]/out.txt"
+    "stdout": "[SLAVE_BUILD]/out.txt"
   },
   {
     "cmd": [
       "ls",
       "/path/to/tmp/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "list temp dir"
   },
   {
     "cmd": [
       "ls",
-      "[TMP]/out"
+      "[SLAVE_BUILD]/out"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "leak dir"
   },
   {
@@ -63,6 +70,7 @@
       "\nimport sys\nwith open(sys.argv[1], 'w') as f:\n  f.write('bad_value')\n",
       "/path/to/tmp/"
     ],
+    "cwd": "[SLAVE_BUILD]",
     "name": "override_default_mock",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@@@@",