work on fuzzing makefile; commit corpus

fuzz/corpus/2403fd69d43c2dedbb59b85bd6978a67ec061e28

@@ -0,0 +1,22 @@
+// comment
+plat2 = tuple[*].foo.bar[0]
+  for1   = { for i, v in ["a", "a", "b"] : v => i... }
+  for2   = [ for k, v in var.map : "${k}-${v}" ]
+  for3   = { f{ for = "baz" }
+  null1  = null
+  bool1  = true
+  bool2  = false
+  splat1 = tuple.*.foo.bar[0]
+  splat2 = tuple[*].foo.bar[0]
+  for1   -${v}" ]
+  for3   = { for k, v in var.map : k => v }
+  for4   = [ for v in var.li,t : v ]
+  for5   = { for v in var.list : v => v }
+  for6   = [ for v i
+    attr3 = 2.112e-12
+    attr4 = 2.112e+12
+    attr5 = 2.112E+12
+    attr6 = 2.112E-12
+    attr7 = 0x21FM
+  }
+}