[alias] merge of feature/lval-in-general

src/plugins/alias/API.ml

src/plugins/alias/API.mli

src/plugins/alias/Alias.ml

src/plugins/alias/abstract_state.ml

src/plugins/alias/abstract_state.mli

src/plugins/alias/analysis.ml

src/plugins/alias/simplified.ml

src/plugins/alias/tests/basic/if_then1.c

src/plugins/alias/tests/basic/oracle/assignment1.res.oracle

src/plugins/alias/tests/basic/oracle/assignment2.res.oracle

src/plugins/alias/tests/basic/oracle/assignment3.res.oracle

src/plugins/alias/tests/basic/oracle/assignment4.res.oracle

src/plugins/alias/tests/basic/oracle/assignment5.res.oracle

src/plugins/alias/tests/basic/oracle/cast1.res.oracle

src/plugins/alias/tests/basic/oracle/conditional1.res.oracle

src/plugins/alias/tests/basic/oracle/conditional2.res.oracle

src/plugins/alias/tests/basic/oracle/function1.res.oracle

src/plugins/alias/tests/basic/oracle/function2.res.oracle

src/plugins/alias/tests/basic/oracle/function3.res.oracle

src/plugins/alias/tests/basic/oracle/function4.res.oracle