Merge pull request #140 from anba/issue-35/expressions

test/language/expressions/addition/S11.6.1_A2.4_T3.js

test/language/expressions/addition/S11.6.1_A2.4_T4.js

test/language/expressions/assignment/11.13.1-4-1.js

test/language/expressions/assignment/8.14.4-8-b_1.js

test/language/expressions/assignment/S11.13.1_A3.1.js

test/language/expressions/assignment/S11.13.1_A4_T1.js

test/language/expressions/call/11.2.3-3_1.js

test/language/expressions/call/11.2.3-3_2.js

test/language/expressions/call/11.2.3-3_3.js

test/language/expressions/call/11.2.3-3_4.js

test/language/expressions/call/11.2.3-3_5.js

test/language/expressions/call/11.2.3-3_6.js

test/language/expressions/call/11.2.3-3_7.js

test/language/expressions/call/11.2.3-3_8.js

test/language/expressions/call/S11.2.4_A1.4_T1.js

test/language/expressions/call/S11.2.4_A1.4_T3.js

...guage/expressions/compound-assignment/S11.13.2_A3.1_T1.js

...uage/expressions/compound-assignment/S11.13.2_A3.1_T10.js

...uage/expressions/compound-assignment/S11.13.2_A3.1_T11.js

...guage/expressions/compound-assignment/S11.13.2_A3.1_T2.js