These changes are designed to enable the TI compilers to compile (#1505)

Jerryscript.  The changes include:

CMakeLists.txt: we added conditionals around GCC-specific flags, added
support for TI flags, and removed the always-on debugging flag (-g)

/toolchain_mcu_tim4f.cmake: new toolchain file uses TI-specific parameters

jerry-api.h: the sys/types.h file was #include'd but never used, so we
removed it

jrt-types.h: ditto

jerry-port-default-date.c: the TI toolchain doesn't include
sys/time.h, so we guarded uses of the package

ecma-objects-general.c: added initialization that Travis (the
auto-checking tool) required

JerryScript-DCO-1.0-Signed-off-by: Timothy Harvey t-harvey@ti.com

cmake/toolchain_mcu_tim4f.cmake

@@ -0,0 +1,33 @@
+# Copyright JS Foundation and other contributors, http://js.foundation 
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include(CMakeForceCompiler)
+
+set(CMAKE_SYSTEM_NAME MCU)
+set(CMAKE_SYSTEM_PROCESSOR armv7l)
+set(CMAKE_SYSTEM_VERSION TIM4F)
+
+set(FLAGS_COMMON_ARCH --little_endian --silicon_version=7M4 --float_support=FPv4SPD16)
+
+CMAKE_FORCE_C_COMPILER(armcl TI)
+
+SET (CMAKE_C_FLAGS_DEBUG_INIT          "-g")
+SET (CMAKE_C_FLAGS_MINSIZEREL_INIT     "-o4 -mf0 -DNDEBUG")
+SET (CMAKE_C_FLAGS_RELEASE_INIT        "-o4 -DNDEBUG")
+SET (CMAKE_C_FLAGS_RELWITHDEBINFO_INIT "-o2 -g")
+
+SET (CMAKE_CXX_FLAGS_DEBUG_INIT          "-g")
+SET (CMAKE_CXX_FLAGS_MINSIZEREL_INIT     "-o4 -mf0 -DNDEBUG")
+SET (CMAKE_CXX_FLAGS_RELEASE_INIT        "-o4 -DNDEBUG")
+SET (CMAKE_CXX_FLAGS_RELWITHDEBINFO_INIT "-o2 -g")