Add inlining for old optimizer.

docs/metadata.rst

@@ -80,6 +80,8 @@ explanatory purposes.
           details: {
             // peephole defaults to "true"
             peephole: true,
+            // inliner defaults to "true"
+            inliner: true,
             // jumpdestRemover defaults to "true"
             jumpdestRemover: true,
             orderLiterals: false,

docs/using-the-compiler.rst

@@ -246,6 +246,9 @@ Input Description
             // The peephole optimizer is always on if no details are given,
             // use details to switch it off.
             "peephole": true,
+            // The inliner is always on if no details are given,
+            // use details to switch it off.
+            "inliner": true,
             // The unused jumpdest remover is always on if no details are given,
             // use details to switch it off.
             "jumpdestRemover": true,