Rework internal methods

[szilagyiadam]

• Created virtual function tables for internal methods and call the specialized internal function for the object instead of the generic one which operates based on a switch by the object type
• Generalize ecma_property_descriptor_t to handle virtual and general properties
• Separate the new virtual internal methods into the corresponding .c file

Co-authored-by: Robert Fancsik robert.fancsik@h-lab.eu
JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu

[szilagyiadam]

benchmark test on RPI2:

var a = [];
a.length = 11000;

for (var i = 0; i < 10000; i++) {
    a[i] = i;
}

for (var i = 0; i < 5000; i++) {
    a.reverse();
    a.reverse();
    a.reverse();
    a.reverse();
    a.reverse();
    a.reverse();
    a.reverse();
    a.reverse();
    a.reverse();
    a.reverse();
}

Before: 4m30s
After this PR: 4m3s (10% gain)

[rerobika]

Benchmark	Heap (bytes)	Stack (bytes)	Perf (sec)
0b1100oclock.js	7648 -> 7648 : 0.000%	1656 -> 1656 : 0.000%	0.279 -> 0.292 : -4.625%
3d-cube.js	10992 -> 10992 : 0.000%	14280 -> 11616 : +18.655%	1.090 -> 1.094 : -0.324%
3d-morph.js	289248 -> 289248 : 0.000%	1664 -> 1664 : 0.000%	1.321 -> 1.313 : +0.607%
3d-raytrace.js	119456 -> 119456 : 0.000%	2572 -> 2220 : +13.686%	1.287 -> 1.295 : -0.669%
FitbitOS-Really-Basic.js	2048 -> 2048 : 0.000%	1592 -> 1592 : 0.000%	0.557 -> 0.562 : -0.751%
Flashlight-App-for-FitBit-Ionic.js	7160 -> 7160 : 0.000%	2128 -> 2128 : 0.000%	0.991 -> 0.987 : +0.393%
access-binary-trees.js	27120 -> 27120 : 0.000%	3548 -> 3028 : +14.656%	0.770 -> 0.704 : +8.489%
access-fannkuch.js	1816 -> 1816 : 0.000%	1736 -> 1736 : 0.000%	2.571 -> 2.585 : -0.519%
access-nbody.js	4592 -> 4592 : 0.000%	1824 -> 1824 : 0.000%	1.462 -> 1.465 : -0.178%
bitops-3bit-bits-in-byte.js	1048 -> 1048 : 0.000%	1680 -> 1680 : 0.000%	0.688 -> 0.689 : -0.248%
bitops-bits-in-byte.js	1008 -> 1008 : 0.000%	1680 -> 1680 : 0.000%	0.997 -> 0.983 : +1.409%
bitops-bitwise-and.js	784 -> 784 : 0.000%	1376 -> 1376 : 0.000%	1.259 -> 1.364 : -8.339%
bitops-nsieve-bits.js	61208 -> 61208 : 0.000%	1680 -> 1680 : 0.000%	1.492 -> 1.483 : +0.601%
controlflow-recursive.js	1288 -> 1288 : 0.000%	61584 -> 49344 : +19.875%	0.527 -> 0.490 : +7.076%
crypto-aes.js	28144 -> 28144 : 0.000%	2308 -> 2256 : +2.253%	0.884 -> 0.888 : -0.458%
crypto-md5.js	70896 -> 70896 : 0.000%	1764 -> 1764 : 0.000%	0.729 -> 0.712 : +2.317%
crypto-sha1.js	46240 -> 46240 : 0.000%	1808 -> 1808 : 0.000%	0.750 -> 0.734 : +2.246%
crypto.js	50112 -> 50112 : 0.000%	3200 -> 2744 : +14.250%	8.457 -> 8.422 : +0.417%
date-format-tofte.js	8840 -> 8840 : 0.000%	2136 -> 2136 : 0.000%	0.989 -> 0.974 : +1.523%
date-format-xparb.js	15200 -> 15200 : 0.000%	2664 -> 2512 : +5.706%	0.722 -> 0.740 : -2.567%
deltablue.js	456312 -> 456312 : 0.000%	3592 -> 3080 : +14.254%	5.278 -> 5.257 : +0.398%
fibit-yoga-app.js	6136 -> 6136 : 0.000%	2744 -> 2744 : 0.000%	2.057 -> 1.972 : +4.124%
fitbit-week-number.js	1544 -> 1544 : 0.000%	1744 -> 1744 : 0.000%	0.354 -> 0.358 : -1.080%
ionic-watchface-borderlands.js	8720 -> 8720 : 0.000%	1796 -> 1796 : 0.000%	2.009 -> 2.037 : -1.406%
jacadi.js	4088 -> 4088 : 0.000%	7868 -> 6316 : +19.725%	1.560 -> 1.560 : +0.016%
math-cordic.js	2064 -> 2064 : 0.000%	1680 -> 1680 : 0.000%	1.668 -> 1.659 : +0.553%
math-partial-sums.js	1528 -> 1528 : 0.000%	1656 -> 1656 : 0.000%	1.188 -> 1.156 : +2.651%
math-spectral-norm.js	3248 -> 3248 : 0.000%	1680 -> 1680 : 0.000%	0.762 -> 0.741 : +2.847%
raytrace.js	22008 -> 22008 : 0.000%	5168 -> 4512 : +12.693%	2.654 -> 2.703 : -1.862%
richards.js	8472 -> 8472 : 0.000%	2156 -> 1896 : +12.059%	0.297 -> 0.298 : -0.350%
sdk-altimeter.js	1632 -> 1632 : 0.000%	1824 -> 1824 : 0.000%	2.249 -> 2.277 : -1.216%
sdk-hr-meter.js	1688 -> 1688 : 0.000%	1796 -> 1796 : 0.000%	0.223 -> 0.229 : -2.474%
sdk-lcd-clock.js	5624 -> 5624 : 0.000%	2152 -> 2152 : 0.000%	1.530 -> 1.548 : -1.139%
string-base64.js	90120 -> 90120 : 0.000%	1728 -> 1728 : 0.000%	1.423 -> 1.418 : +0.333%
string-fasta.js	4400 -> 4400 : 0.000%	1664 -> 1664 : 0.000%	2.837 -> 2.550 : +10.113%
Geometric mean:	8680.535 -> 8680.535 : 0.000%	2466.993 -> 2356.301 : +4.487%	1.13 -> 1.124 : +0.531%

Binary (bytes)	master(79fd540)	patch(5ac777e)	Diff
size	239228	243324	+4096 bytes
.rodata	20950	21920	+970 bytes
.dynstr	384	384	0 bytes
.rel.plt	384	384	0 bytes
.interp	25	25	0 bytes
.dynsym	864	864	0 bytes
.gnu.hash	428	428	0 bytes
.text	208744	214240	+5496 bytes
.comment	85	85	0 bytes
.shstrtab	226	226	0 bytes
.data	8	8	0 bytes
.ARM.exidx	8	8	0 bytes
.rel.dyn	16	16	0 bytes
.init	12	12	0 bytes
.got	208	208	0 bytes
.plt	608	608	0 bytes
.note.ABI-tag	32	32	0 bytes
.gnu.version_r	64	64	0 bytes
.bss	1575136	1575136	0 bytes
.fini	8	8	0 bytes
.hash	372	372	0 bytes
.gnu.version	108	108	0 bytes
.fini_array	4	4	0 bytes
.init_array	4	4	0 bytes
.dynamic	248	248	0 bytes
.eh_frame	4	4	0 bytes
.ARM.attributes	53	53	0 bytes