Fix indentation of "true if foo" [Fixes #355]

lib/pry/indent.rb

@@ -43,7 +43,11 @@ class Pry
     # Collection of token types that should be ignored. Without this list
     # keywords such as "class" inside strings would cause the code to be
     # indented incorrectly.
-    IGNORE_TOKENS = [:space, :content, :string, :delimiter, :method, :ident]
+    #
+    # :pre_constant and :preserved_constant are the CodeRay 0.9.8 and 1.0.0
+    # classifications of "true", "false", and "nil".
+    IGNORE_TOKENS = [:space, :content, :string, :delimiter, :method, :ident,
+                     :constant, :pre_constant, :predefined_constant]
 
     # Tokens that indicate the end of a statement (i.e. that, if they appear
     # directly before an "if" indicates that that if applies to the same line,

test/test_indent.rb

@@ -196,6 +196,8 @@ TXT
     @indent.reset.indent("foo 'hi' if bar\n#").should == "foo 'hi' if bar\n#"
     @indent.reset.indent("foo 1 while bar\n#").should == "foo 1 while bar\n#"
     @indent.reset.indent("super if true\n#").should == "super if true\n#"
+    @indent.reset.indent("true if false\n#").should == "true if false\n#"
+    @indent.reset.indent("String if false\n#").should == "String if false\n#"
   end
 
   it "should indent cunningly disguised ifs" do